CAJ | 학술논문

目的探讨64层螺旋CT（MSCT）后处理技术[多平面重建（MPR）、四面重建（CPR）、最大密度投影（MIP）、容积显示法（VR）]对肋骨隐匿性骨折的诊断价值。方法将129例临床上高度怀疑肋骨骨折，经X线片[直接数字化X线摄像系统（DR）]检查阴性或可疑的外伤患者于外伤后2周内均经64层螺旋CT容积扫描，图像拆薄重建，传入随机工作站处理，得到MIP、MPR、CPR及VRT图像。并由2名放射科高年资医师共同阅片，以确定有否骨折。结果129例患者中124例显示有骨折共207处，阳性率达96．1%（124/129）；其中肋软骨骨折14例21处，肋骨骨折110例186处，VR显示肋骨骨折177处。MPR、CPR是诊断隐匿性骨折的主要方法。结论 MSCT后处理技术是诊断肋骨隐匿性骨折有效而可靠的检查手段。
목적탐토64층라선CT（MSCT）후처리기술[다평면중건（MPR）、사면중건（CPR）、최대밀도투영（MIP）、용적현시법（VR）]대륵골은닉성골절적진단개치。방법장129례림상상고도부의륵골골절，경X선편[직접수자화X선섭상계통（DR）]검사음성혹가의적외상환자우외상후2주내균경64층라선CT용적소묘，도상탁박중건，전입수궤공작참처리，득도MIP、MPR、CPR급VRT도상。병유2명방사과고년자의사공동열편，이학정유부골절。결과129례환자중124례현시유골절공207처，양성솔체96．1%（124/129）；기중륵연골골절14례21처，륵골골절110례186처，VR현시륵골골절177처。MPR、CPR시진단은닉성골절적주요방법。결론 MSCT후처리기술시진단륵골은닉성골절유효이가고적검사수단。
Objective To investigate the 64 slice spiral CT post-processing technique (MPR, CPR, MIP, VR) for the diagnosis of occult fracture of rib. Methods One hundred and twenty-nine patients with a clinical suspicion of rib fracture by X-ray (DR) examination was negative or questionabletrauma patients to trauma within 2 weeks by 64 slice spiral CT volume scanning, image reconstruction and thin,random processing incoming workstation, MIP, MPR, CPR and VRT image. And by two radiologists experiencedphysicians information, to determine whether fracture. Re-sults In 129 patients, 124 cases showed fractures were 207,the positive rate was 96.1% (124/129); the costal carti-lagefractures in 14 cases 21, 110 cases of rib fracture 186,VR showed 177 rib fractures. MPR (CPR) was the main method for the diagnosis of occult fracture. Conclusion MSCT post-processing technique in diagnosis of rib occult fracture is effective and reliable examination method.